MY125114A - Permanent magnet field-type compact dc motor and method of making same. - Google Patents

Permanent magnet field-type compact dc motor and method of making same.

Info

Publication number
MY125114A
MY125114A MYPI20004300A MY125114A MY 125114 A MY125114 A MY 125114A MY PI20004300 A MYPI20004300 A MY PI20004300A MY 125114 A MY125114 A MY 125114A
Authority
MY
Malaysia
Prior art keywords
permanent magnet
motor
rare earth
magnet field
type compact
Prior art date
Application number
Inventor
Yamashita Fumitoshi
Toda Shinji
Uenishi Eiji
Sasaki Yuichiro
Original Assignee
Matsushita Electric Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of MY125114A publication Critical patent/MY125114A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/724—Devices having flexible or movable element
    • Y10S977/725—Nanomotor/nanoactuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
    • Y10S977/775—Nanosized powder or flake, e.g. nanosized catalyst
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00—Nanotechnology
    • Y10S977/70—Nanostructure
    • Y10S977/832—Nanostructure having specified property, e.g. lattice-constant, thermal expansion coefficient
    • Y10S977/838—Magnetic property of nanomaterial
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

A PERMANENT MAGNET FIELD-TYPE COMPACT DC MOTOR HAVING A HIGH OUTPUT AND ALOW COGGING TORQUE IS MADE BY FIXING A PAIR OF RARE ERTH MAGNETS (1) MAINLY COMPOSED OF RARE EARTH-IRON BASED RAPIDLY QUENCHED AND SOLIDIFIED FLAKES TO A SOFT MAGNETIC FRAME (2) SO AS TO EXTEND ALONG AN INNER PERIPHERAL SURFACE THEREOF, ANY BY UNSATURATION-MAGNETIZING THE RATE EARTH MAGNETS (1) SO THAT DEMAGNETIZATION CURVES AT CIRCUMFERENTIALLY OPPOSITE END PORTIONS OF THE RARE EARTH MAGNETS (1) ARE MADE SMALLER THAN A DEMAGNETIZATION CURVE AT A CENTRAL PORTION OF A MAGNETIC POLE OF EACH OF THE RARE EARTH MAGNETS (1).THE MOST ILLUSTRATIVE DRAWING IS (FIGURE 1).
MYPI20004300 1999-09-16 2000-09-15 Permanent magnet field-type compact dc motor and method of making same. MY125114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26214399 1999-09-16

Publications (1)

Publication Number Publication Date
MY125114A true MY125114A (en) 2006-07-31

Family

ID=17371662

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20004300 MY125114A (en) 1999-09-16 2000-09-15 Permanent magnet field-type compact dc motor and method of making same.

Country Status (3)

Country Link
US (1) US6708388B1 (en)
MY (1) MY125114A (en)
WO (1) WO2001020754A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001069692A (en) * 1999-08-27 2001-03-16 Matsushita Electric Ind Co Ltd Permanent magnet filed type, small-sized direct-current motor
JP3887342B2 (en) * 2003-04-03 2007-02-28 ミネベア株式会社 Proportional rotary torquer
US20060065789A1 (en) * 2004-08-25 2006-03-30 Woodward James F Method for producing thrusts with "Mach" effects manipulated by alternating electromagnetic fields
JP2007006688A (en) * 2005-05-27 2007-01-11 Minebea-Matsushita Motor Corp Small-sized dc motor
DE102005047445A1 (en) * 2005-09-30 2007-04-05 Robert Bosch Gmbh Electric motor for adjusting e.g. transmission drive unit, in motor vehicle, has magnetic feedback unit with upper feedback plate comprising stop surface that rests on counter stop surface of lower feedback plate of feedback unit
DE102011014421A1 (en) * 2010-03-22 2012-08-09 Johnson Electric S.A. electric machine
EP3355440A1 (en) * 2015-07-14 2018-08-01 Kabushiki Kaisha Toshiba Rotary electrical machine and vehicle
CN111614220B (en) * 2020-06-10 2021-11-09 山东大学 Low-torque pulsation high-speed axial magnetic flux surface-mounted permanent magnet motor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710239A (en) * 1984-09-14 1987-12-01 General Motors Corporation Hot pressed permanent magnet having high and low coercivity regions
EP0284033B1 (en) 1987-03-23 1993-08-11 Tokin Corporation A method for producing a rare earth metal-iron-boron anisotropic bonded magnet from rapidly-quenched rare earth metal-iron-boron alloy ribbon-like flakes
US5204569A (en) * 1990-02-07 1993-04-20 Asmo Co., Ltd. Anisotropic magnet for rotary electric machine
JPH06236807A (en) 1992-10-29 1994-08-23 Seiko Epson Corp Resin-bonded magnet and its manufacture
JPH10201206A (en) * 1997-01-14 1998-07-31 Nippon Mini Motor Kk Direct-current motor
JPH1118390A (en) * 1997-06-20 1999-01-22 Mabuchi Motor Co Ltd Small motor
JPH1198799A (en) 1997-09-18 1999-04-09 Matsushita Electric Ind Co Ltd Dc motor

Also Published As

Publication number Publication date
US6708388B1 (en) 2004-03-23
WO2001020754A1 (en) 2001-03-22

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